Weather on May 18 in Sydney
Historical weather data for May 18 in Sydney, Australia
Based on 55 years of data from SYDNEY (OBSERVATORY HILL)
About This Date
May 18th in Sydney, Australia typically brings mild spring weather, with average highs around 19°C and lows near 12°C. Over 55 years of records, the warmest May 18th was in 1986 (20°C average), while the coldest was 1985 (11°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 38% of May 18th dates historically, with the wettest May 18th recording 4.36" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 18th in Sydney? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 18°C (65°F) | 14°C (57°F) | -- |
| 2024 | 16°C (60°F) | 14°C (57°F) | -- |
| 2023 | 17°C (62°F) | 11°C (51°F) | -- |
| 2022 | 19°C (67°F) | 13°C (55°F) | -- |
| 2021 | 18°C (65°F) | 11°C (52°F) | -- |
| 2020 | 19°C (67°F) | 12°C (53°F) | 0.12" |
| 2019 | 24°C (75°F) | 13°C (55°F) | 0" |
| 2018 | 22°C (71°F) | 9°C (49°F) | 0" |
| 2017 | 22°C (71°F) | 13°C (55°F) | 0" |
| 2016 | 22°C (71°F) | 13°C (55°F) | 0" |
| 2015 | 19°C (67°F) | 12°C (53°F) | 0" |
| 2014 | 25°C (77°F) | 13°C (55°F) | 0" |
| 2013 | 21°C (69°F) | 11°C (52°F) | 0" |
| 2012 | 23°C (74°F) | 11°C (51°F) | 0" |
| 2011 | 21°C (69°F) | 8°C (47°F) | 0" |
| 2010 | 16°C (60°F) | 12°C (54°F) | 1.38" |
| 2009 | 21°C (70°F) | 11°C (51°F) | 0" |
| 2008 | 18°C (64°F) | 9°C (48°F) | 0" |
| 2007 | 19°C (67°F) | 16°C (61°F) | 0.3" |
| 2006 | 23°C (73°F) | 12°C (53°F) | 0" |
| 2005 | 18°C (64°F) | 12°C (54°F) | 1.78" |
| 2004 | 19°C (66°F) | 11°C (51°F) | 0" |
| 2003 | 20°C (68°F) | 14°C (58°F) | 1.02" |
| 2002 | 16°C (60°F) | 9°C (49°F) | 0" |
| 2001 | 16°C (60°F) | 11°C (52°F) | 0.02" |
| 2000 | 21°C (69°F) | 13°C (55°F) | 0" |
| 1999 | 21°C (69°F) | 10°C (50°F) | 0" |
| 1998 | 19°C (67°F) | 17°C (63°F) | 2.92" |
| 1997 | 22°C (71°F) | 14°C (57°F) | 0" |
| 1996 | 18°C (65°F) | 12°C (53°F) | 0.84" |
| 1995 | 19°C (67°F) | 14°C (58°F) | 1.98" |
| 1994 | 23°C (74°F) | 11°C (52°F) | 0" |
| 1993 | 18°C (64°F) | 12°C (53°F) | 0" |
| 1992 | 21°C (69°F) | 13°C (55°F) | 0" |
| 1991 | 19°C (67°F) | 12°C (53°F) | 0.32" |
| 1990 | 16°C (60°F) | 14°C (58°F) | 0.6" |
| 1989 | 22°C (72°F) | 16°C (60°F) | 0.02" |
| 1988 | 22°C (71°F) | 17°C (63°F) | 0.14" |
| 1987 | 19°C (67°F) | 12°C (54°F) | 0.24" |
| 1986 | 24°C (76°F) | 15°C (59°F) | 0.4" |
| 1985 | 14°C (58°F) | 8°C (46°F) | 0" |
| 1984 | 21°C (69°F) | 13°C (56°F) | 1.68" |
| 1983 | 20°C (68°F) | 13°C (55°F) | 0" |
| 1982 | 25°C (77°F) | 11°C (51°F) | 0" |
| 1981 | 14°C (57°F) | 13°C (55°F) | 1" |
| 1980 | 19°C (66°F) | 11°C (51°F) | 0" |
| 1979 | 18°C (64°F) | 8°C (47°F) | 0" |
| 1978 | 18°C (65°F) | 13°C (56°F) | 0.38" |
| 1977 | 19°C (66°F) | 14°C (58°F) | 0.56" |
| 1976 | 21°C (69°F) | 10°C (50°F) | 0.12" |
| 1975 | 24°C (75°F) | 12°C (54°F) | 0" |
| 1974 | 16°C (60°F) | 13°C (56°F) | 4.36" |
| 1973 | 19°C (66°F) | 7°C (45°F) | 0" |
| 1972 | 19°C (67°F) | 9°C (48°F) | 0" |
| 1971 | 19°C (67°F) | 11°C (52°F) | 0" |